<template>
  <div>
    <h1>{{ id ? "编辑" : "新建" }}广告位</h1>
    <el-form label-width="120px" @submit.native.prevent="save">
      <el-form-item label="名称">
        <el-input v-model="model.title"></el-input>
      </el-form-item>

      <el-form-item label="广告">
        <el-button size="small" @click="model.items.push({})">
          <i class="el-icon-plus"></i>添加广告
        </el-button>
        <el-row type="flex" style="flex-wrap: wrap">
          <el-col :md="24" v-for="(item, i) in model.items" :key="i">
            <el-form-item label="跳转连接(URL)">
              <el-input v-model="item.url"></el-input>
            </el-form-item>

            <el-form-item label="图片" style="margin-top: 0.5rem">
              <el-upload
                class="avatar-uploader"
                name="uploadfile"
                :action="uploadUrl"
                :show-file-list="false"
                :on-success="(res) => $set(item, 'image', res.url)"
              >
                <img v-if="item.image" :src="item.image" class="avatar" />
                <i v-else class="el-icon-plus avatar-uploader-icon"></i>
              </el-upload>
              <!-- <el-upload
                :action="$http.defaults.baseURL + '/upload'"
                name="uploadfile"
                list-type="picture-card"
                :on-success="(res) => $set(item, 'image', res.url)"
              >
                <i slot="default" class="el-icon-plus"></i>
                <div slot="file" slot-scope="{ file }">
                  <img
                    class="el-upload-list__item-thumbnail"
                    :src="item.image"
                    alt=""
                  />
                  <span class="el-upload-list__item-actions">
                    <span
                      class="el-upload-list__item-preview"
                      @click="handlePictureCardPreview(file)"
                    >
                      <i class="el-icon-zoom-in"></i>
                    </span>
                    <span
                      v-if="!disabled"
                      class="el-upload-list__item-delete"
                      @click="handleRemove(file)"
                    >
                      <i class="el-icon-delete"></i>
                    </span>
                  </span>
                </div>
              </el-upload> -->
              <!-- <el-dialog :visible.sync="dialogVisible">
                <img width="100%" :src="item.image" alt="" />
              </el-dialog> -->
            </el-form-item>

            <el-form-item>
              <el-button
                size="small"
                type="danger"
                @click="model.items.splice(i, 1)"
                >删除</el-button
              >
            </el-form-item>
          </el-col>
        </el-row>
      </el-form-item>

      <el-form-item>
        <el-button type="primary" native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  props: {
    id: {}
  },
  data () {
    return {
      model: {
        items: [] // 保存广告位
      }
    }
  },
  created () {
    this.id && this.fetch()
  },
  methods: {
    async save () {
      let res
      if (this.id) { // id存在则put修改
        res = await this.$http.put(`rest/ads/${this.id}`, this.model)
      } else { // 没有id则新增
        res = await this.$http.post('rest/ads', this.model)
      }
      console.log('save-ignore=>', res)
      this.$router.push('/ads/list').catch(err => { console.log(err) })
      this.$message({
        type: 'success',
        message: '保存成功'
      })
    },
    // id存在时获取数据进行编辑
    async fetch () {
      const res = await this.$http.get(`rest/ads/${this.id}`)
      console.log('fetch-deit=>', res)
      // 服务端会将整个model全部重新赋值
      // this.model = res.data
      // 用Object.assign()将新的属性挂载
      this.model = Object.assign({}, this.model, res.data)
    }
  }
}
</script>

<style scoped>
.avatar{
  min-width:260px;
}
</style>
